Roman Empire; Eusebius, of Caesarea, Bishop of Caesarea, ca. 260- ca. 340; Persecution; Churches; Jerusalem; Alexandria (Egypt); Fayyūm (Egypt); Patriarchs and patriarchate; Christianity
Coptic Church; Liturgies; Sacraments; Bishops; Priests; Deacons; Gregory of Nazianzus, Saint; Constantine I, Emperor of Rome, d. 337; Martyrs; Saints; Mary, Blessed Virgin, Saint; Intercession; Eusebius, of Caesarea, Bishop of Caesarea, ca. 260-...